Lab test for Carbohydrates

Thought I would pose this question to this itb who might run analysis. How hard (costly) would it be to run a test for Carbohydrates in a liquor or wine?

I’ve been doing Keto occasionally for a few years and would love to have a real answer for Fernet Branca. I’d gladly pay a decent fee for that answer but wouldn’t mind some others if the $$$ is palatable.

Any thoughts on the process or with whom to inquire.

https://ketofoodist.com/food/43179262/

I see lots of guesses which I assume this is as well. Anywhere from 3-20 if you search around. It’s not a sweet liquor…but I would like to send a sample off to see officially

https://www.etslabs.com/analyses/DGFI $63 for a glu/fru on distilled spirits